V-Link Data 2X Support
Common Options : Enabled, Disabled
V-Link Data 2X Support : A Quick Review
In VIA chipsets, the IDE / SATA controller (known as the VIA DriveStation) is linked to the south bridge chip using a dedicated V-Link bus that offers twice as much bandwidth as the PCI bus.
However, there are occasions where it may cause data corruption as well as boot failures with some storage disk drives. This is where V-Link Data 2X Support comes in.
The V-Link Data 2X Support BIOS feature controls the operation of the V-Link bus between the VIA DriveStation and the south bridge chip.
It is slaved to the Serial ATA Controller BIOS feature. If the Serial ATA Controller BIOS feature is disabled, this BIOS feature will be grayed out.
When enabled, the V-Link bus connecting the VIA DriveStation to the south bridge chip will run at full speed, delivering 266 MB/s of bandwidth.
When disabled, the V-Link bus connecting the VIA DriveStation to the south bridge chip will run at half speed, delivering 133 MB/s of bandwidth.
It is recommended that you enable this BIOS feature for maximum performance from storage devices attached to the VIA DriveStation. However, if you experience data corruption or boot problems, disable this BIOS feature.
V-Link Data 2X Support : The Full Details
In VIA chipsets, the IDE / SATA controller (known as the VIA DriveStation) no longer runs off the PCI bus. To ensure maximum performance, it is linked to the south bridge chip using a dedicated 8-bit, quad-pumped V-Link bus running at 66 MHz.
This V-Link bus offers twice as much bandwidth as the PCI bus, allowing data transfers of up to 266 MB/s.
In addition, the IDE/SATA controller does not need share this bandwidth with any other device, as it would have to, if it was on the PCI bus.
However, all is not peachy with the use of the faster V-Link bus.
There are occasions where it may cause data corruption as well as boot failures with some storage drives.
This issue only affects storage drives connected to the VIA DriveStation. It does not affect drives connected to third-party IDE/SATA controllers because they use the PCI bus.
This is where V-Link Data 2X Support comes in. It controls the operation of the V-Link bus between the VIA DriveStation and the south bridge chip.
It is slaved to the Serial ATA Controller BIOS feature. If the Serial ATA Controller BIOS feature is disabled, this BIOS feature will be grayed out.
When enabled, the V-Link bus connecting the VIA DriveStation to the south bridge chip will run at full speed, delivering 266 MB/s of bandwidth.
When disabled, the V-Link bus connecting the VIA DriveStation to the south bridge chip will run at half speed, delivering 133 MB/s of bandwidth.
It is recommended that you enable this BIOS feature for maximum performance from storage devices attached to the VIA DriveStation. However, if you experience data corruption or boot problems, disable this BIOS feature.
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